Jackson Json: how to convert array to JsonNode and ObjectNode?

Question

Given Employee and company class

Company
{
    String companyName;
}

Employee
{
    String employeeName;
}

and my code like the following<

Answer 1

You can use jackson ObjectNode's put and putArray like

import com.fasterxml.jackson.databind.node.ObjectNode;
ArrayList employee = new ArrayList();
for(int i = 1; i < 4; i++){
  ObjectNode em = Json.newObject();
  em.put("companyName", "cName" + i);
  employee.add(em);
}
ObjectNode company = Json.newObject();
company.put("companyName", "cName");
company.putArray("employee").addAll(employee);
return Json.newObject().put("company", company);